Site - Hyytiälä SMEAR station¶
Coordinates:
Mast (INESC, 1.2m height (shutter), 3.1m from wind fence): 61.84351; 24.28848
Mast (HU, 2.12m height, 2.3m from wind fence): 61.84355; 24.28856
Accumulation chamber: 61.84743; 24.29546
Alpha sensor in soil: 61.84755; 24.29536
Gamma sensor in air (): 61.84739; 24.29575
Weather conditions:
2017-06-12 and 2017-06-13: rain
2017-06-14 to 2017-06-15: fair weather days
2017-06-16: cloudy, light rain
Time:
Local time (LT) = UTC + 3
Dataloggers time = UTC (LT - 3
Instruments set-up¶
CS110 field mill¶
Power supply and raspberry pi inside the protective box. Mast ~3.1m from wind fence.
Datafile - preliminary measurements/testing
Field mills comparison¶
Sensor turned on/off for comparison with HU field mill
on: up to 2017-06-15, 15:24 (LT) (12:24 UTC)
off: 2017-06-15, 15:25 to 17:41 (LT) [12:25 to 14:41 UTC]
on: 2017-06-15, 17:42 to 20:16 (LT) [14:42 to 17:16 UTC]
off: 2017-06-15, 20:17 21:21 (LT) [17:17 to 18:21 UTC]
on: 2017-06-15, 21:22 to 22:29 (LT) [18:22 to 19:29 UTC]
off 2017-06-15, 22:30 to 22:42 (LT) [19:30 to 19:42]
on: 2017-06-15, 22:43 to 02:30 (LT) [19:43 to 23:30 UTC]
off: 2017/06/16, 02:31 to 07:10 (LT) [23:31 to 04:10 UTC]
on: 2017-06-16, 07:11 to 08:32 (LT) [04:11 to 05:32 UTC]
off: 2017-06-16, 08:33 to 10:43 (LT) [05:33 to 07:43 UTC]
on: 2017-06-16, 10:44 (LT) [07:44 UTC]
Alpha sensor¶
Alpha (Barasol sensor) at ~0.5m depth in soil. Power supply from the hut, power cord extension. CR800 datalogger: resistor between 5V (brown) and barasol pulse (P1) (yellow).
Measurements start ~10:30 LT (2017-06-16).
